Added comment for input in p_roll

Practical/Practical Exam/PL-SQL/P2 - Unnamed PL-SQL.md

@@ -24,7 +24,7 @@ CREATE TABLE Borrower (
   Name VARCHAR2(255),
   DateofIssue DATE,
   NameofBook VARCHAR2(255),
-  Status VARCHAR(255),
+  Status VARCHAR2(255),
   PRIMARY KEY (rollin)
 );
 
@@ -62,7 +62,7 @@ BEGIN
   DBMS_OUTPUT.PUT_LINE('Enter roll number: ');
   p_roll := &p_roll; -- specify value directly for Live SQL. Eg.: p_roll := 1;
   DBMS_OUTPUT.PUT_LINE('Enter book name: ');
-  p_book := &p_book; -- specify value directly for Live SQL. Eg.: p_roll := 'DBMS';
+  p_book := '&p_book'; -- specify value directly for Live SQL. Eg.: p_roll := 'DBMS';
 
   IF (p_roll <= 0) THEN
     RAISE nodata;

Practical/Practical Exam/PL-SQL/P4 - PL-SQL Block.md

@@ -35,8 +35,7 @@ DECLARE
     p_roll Student.Roll%type;
     nodata EXCEPTION;
 BEGIN
-		DBMS_OUTPUT.PUT_LINE('Enter roll number: ');
-    p_roll := &p_roll;
+    p_roll := &p_roll; -- specify value directly for Live SQL. Eg.: p_roll := 1;
 
     IF (p_roll < 0) THEN
         raise nodata;